Portable hair drier

Abstract

The utility model discloses a portable hair dryer. The portable hair dryer comprises a hair dryer body, a cold and hot piece, a radiator and a handle. The cold and hot sheet is arranged in the hair dryer main body, and the cold end face of the cold and hot sheet faces the inner shell face of the hair dryer main body; the radiator comprises a radiating base arranged on the hot end face of the cold and hot piece and radiating blades arranged on the top of the radiating base plate, and an air channel is formed between every two adjacent radiating blades. The handle is connected to the lower end of the hair dryer body and can rotate relative to the hair dryer body, a battery is arranged in the handle, and the battery is electrically connected with the cold and hot piece. According to the utility model, the cold and hot sheets are used for heating, when the cold and hot sheets are electrified, the heat of the hot end surface is increased, and the heat of the cold end surface is absorbed and superposed, so that the power consumption is lower, the utilization rate of the battery is increased, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to a portable hair dryer. Background Art

[0002] Currently, the new portable hair dryers on the market use resistance wire to generate heat for the main heating part, but the heating power of the heating wire is as high as 300W, and the required current is large. Portable hair dryers are generally powered by batteries. Under the condition of a certain charge capacity, the greater the output current, the shorter the discharge time, which means that the portable hair dryer has a short usage time.

[0003] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a portable hair dryer to solve the problem of short use time of the portable hair dryer in the prior art when using a resistance wire for heating.

[0005] The technical solution of the utility model is as follows:

[0006] A portable hair dryer, comprising: a hair dryer body, a hot and cold plate, a radiator and a handle;

[0007] The hot and cold plate is arranged in the hair dryer body, and the cold end of the hot and cold plate faces the inner shell surface of the hair dryer body;

[0008] The radiator comprises a heat dissipation base arranged on the hot end surface of the cold and hot plate and heat dissipation blades arranged on the top of the heat dissipation bottom plate, and an air duct is formed between adjacent heat dissipation blades;

[0009] The handle is connected to the lower end of the hair dryer body and can rotate relative to the hair dryer body. A battery is arranged inside the handle, and the battery is electrically connected to the hot and cold plate.

[0010] In a further configuration of the utility model, the hair dryer body is further provided with a circuit board connected to the hot and cold plates and the battery respectively;

[0011] The circuit board is provided with a control module and a temperature sensor;

[0012] The temperature sensor is close to one side of the air duct and is used to detect the temperature of the air duct;

[0013] The control module is connected to the temperature sensor and is used for outputting a control instruction when the temperature is greater than a threshold value.

[0014] In a further configuration of the utility model, the circuit board is also provided with a current regulating module;

[0015] The current regulating module is connected to the cold and hot plates and the control module respectively, and is used to regulate the input current of the cold and hot plates according to control instructions.

[0016] In a further configuration of the utility model, the hair dryer body further comprises a motor, and the motor is electrically connected to the driving module on the circuit board;

[0017] The driving module is connected to the control module and is used to control the rotation speed of the motor according to a control instruction.

[0018] According to a further configuration of the utility model, two of the hot and cold plates and the radiator are provided; the two hot and cold plates are arranged oppositely inside the hair dryer body, and the two radiators are arranged oppositely inside the hair dryer body.

[0019] In a further configuration of the utility model, the handle includes a charging control board and a first charging interface;

[0020] The first charging interface is connected to the charging control board and is used to receive direct current;

[0021] The charging control board is connected to the battery and is used to adjust the charging current of the battery according to the direct current.

[0022] In a further configuration of the utility model, the handle further includes an AC / DC conversion module and a second charging interface;

[0023] The second charging interface is connected to the AC / DC conversion module and is used to receive AC current;

[0024] The AC / DC conversion module is connected to the charging control board and is used for converting AC current into DC current and outputting the DC current to the charging control board.

[0025] In a further configuration of the utility model, the handle further comprises an on / off key plate;

[0026] The switch key panel is connected to the control module and the battery respectively, and is used for outputting a mode instruction to the control module when the switch is pressed.

[0027] According to a further configuration of the utility model, the motor is a brushless motor.

[0028] According to a further configuration of the utility model, the temperature sensor is an infrared thermoelectric temperature sensor.

[0029] The utility model provides a portable hair dryer, which comprises: a hair dryer body, a hot and cold plate, a radiator and a handle; the hot and cold plate is arranged in the hair dryer body, and the cold end of the hot and cold plate faces the inner shell surface of the hair dryer body; the radiator comprises a heat dissipation base arranged on the hot end surface of the hot and cold plate and heat dissipation blades arranged on the top of the heat dissipation bottom plate, and an air duct is formed between adjacent heat dissipation blades; the handle is connected to the lower end of the hair dryer body and can rotate relative to the hair dryer body, and a battery is arranged inside the handle, and the battery is electrically connected to the hot and cold plate. The utility model adopts the hot and cold plate for heating. When the hot and cold plate is connected to current, not only the heat of the hot end surface increases, but also the heat of the cold end surface is absorbed and superimposed, so the power consumption is small, the battery utilization rate is increased, and the use time is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary personnel in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 It is a cross-sectional view of the air outlet of the portable hair dryer in the utility model.

[0032] Figure 2 It is a structural diagram of a portable hair dryer in the utility model.

[0033] Figure 3 It is a circuit connection diagram of the portable hair dryer in the utility model. DETAILED DESCRIPTION

[0034] The utility model provides a portable hair dryer. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0035] In the embodiments and patent claims, unless the article is specifically limited in the text, "a", "an", "said" and "the" may also include plural forms. If there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0036] It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can also be intermediate elements. In addition, the "connection" or "coupling" used here can include wireless connection or wireless coupling. The term "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0037] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0038] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] Please also see Figures 1 to 3 The utility model provides a preferred embodiment of a portable hair dryer.

[0040] like Figures 1 to 3 As shown, the portable hair dryer includes a hair dryer body 100, a hot and cold plate 11, a radiator 12 and a handle 200; the hot and cold plate 11 is arranged in the hair dryer body, and the cold end surface 112 of the hot and cold plate 11 faces the inner shell 10 surface of the hair dryer body 100, the radiator 12 includes a heat dissipation base 121 arranged on the hot end surface 111 of the hot and cold plate 11 and heat dissipation blades 122 arranged on the top of the heat dissipation bottom plate, and an air duct is formed between adjacent heat dissipation blades 122; the handle 200 is connected to the lower end of the hair dryer body 100 and can rotate relative to the hair dryer body 100, and a battery 15 is arranged inside the handle 200, and the battery 15 is electrically connected to the hot and cold plate 11.

[0041] Specifically, the hair dryer body 100 includes an air outlet 20 and an air inlet 30, and two of the cold and hot plates 11 and the radiator 12 are provided; the two cold and hot plates 11 are oppositely arranged inside the hair dryer body 100, and the two radiators 12 are oppositely arranged inside the hair dryer body 100. The radiator 12 and the cold and hot plates 11 are located at the air outlet 20, wherein the cold and hot plates 11 include a cold end surface 112 and a hot end surface 111 opposite to the cold end surface 112. The hot end surface 111 of the cold and hot plates 11 is close to the heat dissipation base 121, and the cold end surface 112 of the cold and hot plates 11 faces the inner shell 10 surface of the hair dryer body 100. The heat generated by the cold and hot plates 11 is transferred to the air duct through the heat dissipation blades 122, and the heat in the air duct is transferred out through the air outlet 20.

[0042] The working principle of the portable hair dryer of this embodiment is as follows: when current passes through the hot and cold plate 11, heat transfer will occur between the two ends, and the heat will be transferred from one end to the other end, thereby generating a temperature difference to form a cold end surface 112 and a hot end surface 111. The hot end surface 111 is close to the heat dissipation base 121 to prevent the hot end surface 111 from being overheated and burning the hot and cold plate 11. The hot and cold plate 11 is electrically connected to the battery 15. After current is passed through the hot and cold plate 11, the current increases, which not only increases the heat of the hot end surface 111, but also absorbs the heat of the cold end surface 112 to increase the utilization rate of the battery 15, thereby increasing the use time when the storage charge of the battery 15 is constant.

[0043] In one embodiment, if Figures 1 to 3 As shown, the hair dryer body 100 is also provided with a circuit board 13 respectively connected to the hot and cold plates 11 and the battery 15; the circuit board 13 is provided with a control module 131 and a temperature sensor 132; the temperature sensor 132 is close to one side of the air duct and is used to detect the temperature of the air duct; the control module 131 is connected to the temperature sensor 132 and is used to output a control instruction when the temperature is greater than a threshold value.

[0044] Specifically, the circuit board 13 is arranged on a side of the radiator 12 away from the air outlet 20. The circuit board 13 is provided with a temperature sensor 132, and the sensing end of the temperature sensor 132 faces the air duct to detect the temperature of the air duct. After the cold and hot plate 11 passes, the heat dissipation blade 122 will transfer heat to the air duct. At this time, the temperature sensor 132 detects the temperature of the air duct in real time. When the temperature is greater than the threshold, the control module 131 will output instructions to control the subsequent equipment to perform corresponding operations, such as shutting down or cooling. Among them, the size of the threshold can be set according to actual conditions.

[0045] In one embodiment, the temperature sensor 132 is an infrared thermoelectric temperature sensor. The infrared thermoelectric temperature sensor is a sensor that can measure the surface temperature of an object by sensing the infrared radiation energy on the surface of the object. It has high accuracy and fast response speed, and does not require direct contact with the object being measured, which provides convenience for temperature measurement of portable hair dryers.

[0046] In one embodiment, if Figure 3 As shown, the circuit board 13 is further provided with a current regulating module 133 , which is connected to the cold and hot plate 11 and the control module 131 respectively, and is used to regulate the input current of the cold and hot plate 11 according to control instructions.

[0047] Specifically, the current regulating module 133 is also connected to the battery 15, and adjusts the input current of the cold and hot plate 11 according to the charge of the battery 15. When the temperature is too high, the control module 131 will output a control instruction. When the current regulating module 133 receives the control instruction, it will reduce the input current of the cold and hot plate 11. The cold and hot plate 11 determines the heat release and heat absorption based on the input current. Therefore, when the input current is reduced, the heat of the cold and hot plate 11 is reduced, that is, the temperature of the air outlet 20 is reduced, thereby realizing automatic control of the temperature of the hair dryer and achieving a comfortable effect of warm air.

[0048] In one embodiment, if Figures 2 to 3 As shown, the hair dryer body 100 also includes a motor 14, and the motor 14 is electrically connected to a driving module 134 on the circuit board 13; the driving module 134 is connected to the control module 131, and is used to control the rotation speed of the motor 14 according to control instructions.

[0049] Specifically, the motor 14 is disposed at the air inlet 30 of the hair dryer body 100. The driving module 134 is used to adjust the rotation speed of the motor 14. When the air duct temperature is too high, the control module 131 will issue a control instruction. When the driving module 134 receives the control instruction, it will increase the rotation speed of the motor 14 to accelerate the air flow of the air duct and reduce the air duct temperature, so as to achieve the purpose of automatic temperature adjustment and output warm air effect.

[0050] In one embodiment, the motor 14 is a brushless motor 14, which uses electronic commutation to reduce energy loss caused by mechanical commutation and has higher efficiency. The brushless motor 14 does not have mechanical commutation and brush friction noise, so the noise is lower.

[0051] In one embodiment, if Figures 2 to 3As shown, the handle 200 includes a charging control board 16 and a first charging interface 17; the first charging interface 17 is connected to the charging control board 16 for receiving direct current; the charging control board 16 is connected to the battery 15 for adjusting the charging current of the battery 15 according to the direct current.

[0052] Specifically, when the first charging interface 17 is connected to direct current, for example, the output current of a solar backpack or a power bank during outdoor travel is direct current, the charging control board 16 directly adjusts the charging current according to the voltage of the direct current to avoid excessive voltage and burning of the battery 15.

[0053] In one embodiment, if Figures 2 to 3 As shown, the handle also includes an AC / DC conversion module 19 and a second charging interface 21; the second charging interface 21 is connected to the AC / DC conversion module 19 for receiving AC current; the AC / DC conversion module 19 is connected to the charging control board 16 for converting AC current into DC current and outputting it to the charging control board 16.

[0054] Specifically, when the second charging interface 21 is connected to AC power, for example, to the mains, the AC / DC conversion module 19 will charge the battery 15 by converting the AC current into DC current, and then the charging control board 16 will control the charging current.

[0055] In one embodiment, the first charging interface 17 is an all-in-one interface, and the first charging interface 17 includes multiple forms, such as a USB interface and a TYPE-C interface. By adopting an all-in-one interface, it is convenient for users to choose.

[0056] In one embodiment, if Figure 3 As shown, the handle 200 further includes a switch key panel 18 ; the switch key panel 18 is connected to the control module 131 and the battery 15 , respectively, and is used to output a mode instruction to the control module 131 when the switch is pressed.

[0057] Specifically, the switch key panel 18 includes a switch, which may be a sliding switch or a plurality of key switches, without limitation. When the switch is pressed, for example, the sliding switch slides to a certain gear position, or different key switches are pressed, different mode instructions are output to the control module 131, and the control module 131 sends an operation instruction to the subsequent modules to enable the portable hair dryer to operate in different modes, for example, cold air mode and warm air mode.

[0058] In summary, the utility model provides a portable hair dryer, which includes: a hair dryer body, a hot and cold plate, a radiator and a handle; the hot and cold plate is arranged in the hair dryer body, and the cold end surface of the hot and cold plate faces the inner shell surface of the hair dryer body; the radiator includes a heat dissipation base arranged on the hot end surface of the hot and cold plate and heat dissipation blades arranged on the top of the heat dissipation bottom plate, and an air duct is formed between adjacent heat dissipation blades; the handle is connected to the lower end of the hair dryer body and can rotate relative to the hair dryer body, and a battery is arranged inside the handle, and the battery is electrically connected to the hot and cold plate. The utility model adopts the hot and cold plate for heating. When the hot and cold plate is connected to the current, not only the heat of the hot end surface increases, but also the heat of the cold end surface is absorbed and superimposed, so the power consumption is small, the battery utilization rate is increased, and the battery service life is improved.

[0059] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A portable hair dryer, characterized in that: include: Hair dryer body, hot and cold plates, radiator and handle; The hot and cold plate is arranged in the hair dryer body, and the cold end surface of the hot and cold plate faces the inner shell surface of the hair dryer body; The radiator comprises a heat dissipation base arranged on the hot end surface of the cold and hot plate and heat dissipation blades arranged on the top of the heat dissipation bottom plate, and an air duct is formed between adjacent heat dissipation blades; The handle is connected to the lower end of the hair dryer body and can rotate relative to the hair dryer body. A battery is arranged inside the handle, and the battery is electrically connected to the hot and cold plate.

2. The portable hair dryer according to claim 1, characterized in that: The hair dryer body is also provided with a circuit board connected to the hot and cold plates and the battery respectively; The circuit board is provided with a control module and a temperature sensor; The temperature sensor is close to one side of the air duct and is used to detect the temperature of the air duct; The control module is connected to the temperature sensor and is used for outputting a control instruction when the temperature is greater than a threshold value.

3. The portable hair dryer according to claim 2, characterized in that: The circuit board is also provided with a current regulating module; The current regulating module is connected to the cold and hot plates and the control module respectively, and is used to regulate the input current of the cold and hot plates according to control instructions.

4. The portable hair dryer according to claim 2, characterized in that: The hair dryer body also includes a motor, and the motor is electrically connected to the driving module on the circuit board; The driving module is connected to the control module and is used to control the rotation speed of the motor according to a control instruction.

5. The portable hair dryer according to claim 1, characterized in that: There are two cold and hot plates and two radiators; the two cold and hot plates are arranged oppositely inside the hair dryer body, and the two radiators are arranged oppositely inside the hair dryer body.

6. The portable hair dryer according to claim 1, characterized in that: The handle includes a charging control board and a first charging interface; The first charging interface is connected to the charging control board and is used to receive direct current; The charging control board is connected to the battery and is used to adjust the charging current of the battery according to the direct current.

7. The portable hair dryer according to claim 6, characterized in that: The handle also includes an AC / DC conversion module and a second charging interface; The second charging interface is connected to the AC / DC conversion module and is used to receive AC current; The AC / DC conversion module is connected to the charging control board and is used for converting AC current into DC current and outputting the DC current to the charging control board.

8. The portable hair dryer according to claim 2, characterized in that: The handle also includes an on / off key panel; The switch key panel is connected to the control module and the battery respectively, and is used for outputting a mode instruction to the control module when the switch is pressed.

9. The portable hair dryer according to claim 4, characterized in that: The motor is a brushless motor.

10. The portable hair dryer according to claim 2, characterized in that: The temperature sensor is an infrared thermoelectric temperature sensor.

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